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Sibold William John
President and CEODirectorCIK 0001518611
Largest Purchase
No open-market purchases in the recent filings.
Profile
- Filings
- 6
- Buy transactions
- 0
- Sell transactions
- 39
- Companies
- 1
- Active
- 2025–2026
Sibold William John, President and CEO, Director, has filed 6 SEC reports (2025–2026), all concentrated in MADRIGAL PHARMACEUTICALS, INC. (MDGL), totaling $21.7M in disclosed volume. Weighing $0 bought versus $13.5M sold, the history is heavily weighted toward selling. Data is sourced from official SEC Form 3, 4, and 5 filings.
Associated Companies
Trading History
6 loaded
| Sep 11 | MDGL MADRIGAL PHARMACEUTICALS, INC. | Sibold William John | President and CEO, Director | Sell | $6.2M |
| Jul 20 | MDGL MADRIGAL PHARMACEUTICALS, INC. | Sibold William John | President and CEO, Director | Sell | $1.4M |
| Mar 6 | MDGL MADRIGAL PHARMACEUTICALS, INC. | Sibold William John | President and CEO, Director | Sell | $718.3K |
| Jan 26 | MDGL MADRIGAL PHARMACEUTICALS, INC. | Sibold William John | President and CEO, Director | Sell | $776.5K |
| Dec 4 | MDGL MADRIGAL PHARMACEUTICALS, INC. | Sibold William John | President and CEO, Director | Sell | $1.4M |
| Aug 21 | MDGL MADRIGAL PHARMACEUTICALS, INC. | Sibold William John | President and CEO, Director | Sell | $3.0M |
6 filings